deep creek lake fisheries - maryland€¦ · largemouth bass and bluegill exhibit parental care of...

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Deep Creek Lake supports a diverse fish assemblage, with warmwater, coolwater, coldwater species represented in the fisheries. We documented 20 fish species in the lake including: largemouth bass and smallmouth bass northern pike and chain pickerel rainbow trout and brown trout rock bass, pumpkinseed, and bluegill yellow perch black crappie walleye Deep Creek Lake Fisheries Presented by Alan Klotz, Western Region Fisheries Manager Fishing and Boating Services Freshwater Fisheries Program

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Page 1: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

Deep Creek Lake supports a diverse fish

assemblage, with warmwater, coolwater,

coldwater species represented in the fisheries.

We documented 20 fish species in the lake

including:

• largemouth bass and smallmouth bass

• northern pike and chain pickerel

• rainbow trout and brown trout

• rock bass, pumpkinseed, and bluegill

• yellow perch

• black crappie

• walleye

Deep Creek Lake Fisheries

Presented by Alan Klotz, Western Region Fisheries Manager

Fishing and Boating Services

Freshwater Fisheries Program

Page 2: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

Warmwater Fish - group of fishes that thrive and reproduce in water temperatures

warmer than 80 °F, preferred range 70-85 °F. Examples include the largemouth bass

and bluegill. Warmwater fish populations in Deep Creek Lake are characterized by

diverse age and size structure with a large portion of the population in the quality to

preferred size range.

Warmwater Fishery

Page 3: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting

sites are within submerged aquatic vegetation beds in shallow water areas.

Shallow Spawning Habitat

Page 4: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

A seine net is used for reproductive success surveys for warmwater fish species in shallow water areas.

Monitoring Reproductive Success

Page 5: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

Coolwater Fish – group of fishes that thrive and reproduce in water temperatures less than 80°F

but warmer than 60 °F, preferred range 65-70 °F. Utilize shallow water areas for reproduction earlier

in the spring. Examples include northern pike, walleye, smallmouth bass, and yellow perch.

Population indices indicate that these fish species are at high abundance levels, characterized by

diverse age and size structures.

Coolwater Fishery

Page 6: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

About 4,350 rainbow trout and brown trout are stocked in Deep Creek Lake each year by DNR’s

Fishing and Boating Services. These fish are able to survive year-round due to the coldwater layer

of the lake during summer. These fish provide a unique fishing opportunity using the down-rigging

method during the summer period.

Coldwater Fishery

Page 7: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

The History Youghiogheny River Catch and Return Trout Fishery

1987 – Trout Unlimited Proposal for a Special Trout Fishing Management Area.

1993 – Catch and Return Trout Fishing Area established between Hoyes and Sang Run (3.7 miles).

1995 – Temperature Enhancement Releases, Minimum Flows, and Dissolved Oxygen

augmentation from the Deep Creek Hydro-station were implemented.

Youghiogheny River Catch and Return

Trout Fishery

Page 8: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

Deep Creek Lake Hydro-Electric Power Station’s Water Appropriation Permit Conditions to enhance the trout

fishery:

Maintains water temperatures in the river <77 ºF (25 ºC) Fat the lower boundary Sang Run Bridge ( < 4 miles

downstream) through temperature enhancement releases (TER) during the critical summer period.

Maintains minimum river flow of 40 cubic foot per second at Hoyes Run.

Maintains dissolved oxygen at > 6.0 mg/l at the end of the tailrace during release.

Youghiogheny River Catch and Return

Trout Fishery

Page 9: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

DNR’s Fishing and Boating Services: fingerling rainbow

trout and brown trout stocked each year (management

objective 10,000 of each species). “Put and Grow”

fingerling stockings result in beautifully colored

naturalize trout. Adult trout are also stocked to

supplement the fishery.

Youghiogheny River Catch and Return

Trout Fishery

Page 10: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

Great public access:

• Parking areas at Hoyes and Sang Run.

• Angler trail along public lands bordering river.

• Paddle craft float fishing opportunities between

Hoyes and Sang Run.

Youghiogheny River Catch and Return

Trout Fishery

Page 11: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

The Youghiogheny River along with the Savage River

are the most popular trout fishing destinations in

Garrett County (Knoche 2017).

Youghiogheny River Catch and Return

Trout Fishery

Page 12: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

Two sample stations are

monitored annually (Hoyes and

Sang Run Areas) to estimate

the trout populations using

standardized methods. These

field surveys are part of Garrett

College’s Fisheries

Management Class curriculum.

The Fishing and Boating

Service invests about ~

$55,200 annually to manage

the Youghiogheny River C&R

Trout Fishing Area including

trout stocking, temperature

monitoring, trout population

sampling, routine maintenance,

and report writing.

Youghiogheny River Catch and Return

Trout Fishery - Monitoring

Page 13: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

534

926

0

100

200

300

400

500

600

700

800

900

1000

Pre-TER Post-TER

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ut

per

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Youghiogheny River Catch and Return Trout Fishing Area Trout Densities 1988 - 2017

Youghiogheny River Catch and Return

Trout Fishery - Monitoring

Page 14: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

11

21

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5

10

15

20

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Pre-TER Post-TER

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/acr

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Youghiogheny River Catch and Return Trout Fishing Area Trout Biomass 1988 - 2017.

Youghiogheny River Catch and Return

Trout Fishery - Monitoring

Page 15: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

A “quality-sized trout” is greater than or equal to 12 inches.

Youghiogheny River Catch and Return

Trout Fishery - Monitoring

Page 16: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

40

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20

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100

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Youghiogheny River Catch and Return Trout Fishing Area Quality Size Trout Per Mile 1988 - 2017.

Youghiogheny River Catch and Return

Trout Fishery - Monitoring

Page 17: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

Summary: Catch and Return Trout Fishing

regulations coupled with TERs, minimum flow

maintenance, and dissolved oxygen augmentation

has resulted in:

an increase in trout biomass.

an increase in trout densities.

an increase in quality-sized trout.

an expansion of trout fishing opportunities in the

Sang Run to Friendsville area of the river.

Youghiogheny River Catch and Return

Trout Fishery - Monitoring

Page 18: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

Whitewater recreation also benefits

from the temperature enhancement releases

Youghiogheny River Catch and Return

Trout Fishery

Page 19: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

2017 Youghiogheny River Trout Survey

Youghiogheny River Catch and Return

Trout Fishery - Monitoring

Page 20: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

Youghiogheny River Catch and Return

Trout Fishery – Trophy Trout

Page 21: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

2016 Maryland Non-Tidal Angler Survey

Scott Knoche, Director, Morgan State University PEARL(in cooperation with Maryland DNR)

Page 22: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

Survey Objective & Development

• Objective - Cost-effectively collect management-relevant information on MD non-tidal anglers, to draw scientifically-defensible, population-level conclusions while minimizing sources of error

• Worked closely with MD DNR Fishing and Boating Services personnel to develop and refine survey structure & content

• Rigorous Survey Pretesting to ensure comprehension• Hour-long cognitive interviews (N= 18)

• Using screen sharing software, investigator monitored individuals taking web survey

• Afterwards, in-depth discussion on survey comprehension

• No major issues identified, some minor changes made

Page 23: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

Survey Sampling & Mailing

• Random sample of 4,285 individuals• Sample Population: Individuals licensed to fish in

non-tidal Maryland waterways during 2015

• Up to four mail contacts

• Letter & Post Card Web Survey Solicitation (Mailings 1 – 3)

1. Letter introducing survey w/ survey web address

2. Reminder postcard 1 w/ survey web address

3. Reminder postcard 2 w/ survey web address

• Hard Copy Survey (Mailing 4)

4. Survey booklet with Business Reply Mail envelope

• Response rate• 962 responses / 3829 valid addresses = 25.1%

Page 24: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

Survey Content

• General fishing effort

– For up to 6 non-tidal fishing locations 2015, asked anglers to provide:

• Name of Waterbody, County fished, # of trips, and species targeted (multiple)

• Trip-specific information

– Asked anglers to recall details about specific fishing trip in 2015

• # of people, # of nights away, fishing method, satisfaction measures, expenditures...

• Trout-specific questions

– Factors influencing trout fishing site choice

• Regulations, catch rate and size, distance from home, species preference (stocked vs. wild)

• Participation question

– Changes in what factors would increase the number of fishing trips taken

• Increased leisure time, improved access, less crowding, catch more fish,...

• Angler Demographics

Page 25: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

Deep Creek Lake

Trip Duration62% overnight trips21% weekend trips31% extended stay (4 or more nights)

Species Targeted (% of trips)

Bass: 42% Yellow Perch: 42%Walleye: 35%Anything: 27%Smallmouth Bass : 21%Largemouth Bass : 19%Bluegill/Sunfish: 16%Crappie: 11%Northern Pike: 10%

2015 Effort: An estimated 19,400 individuals took 86,700 fishing trips to Deep Creek Lake

2015 Trip Expenditures: $731 mean; $300 median; Estimated Total 2015 = $63,000,000

Trip PurposeFishing was the primary purpose on 52% of trips

*trip calculations (expenditures, duration, purpose,

species) based on n = 60 sample

Page 26: Deep Creek Lake Fisheries - Maryland€¦ · Largemouth bass and bluegill exhibit parental care of spawning nests. Preferred nesting sites are within submerged aquatic vegetation

Youghiogheny River

Trip Duration33% were

overnight trips (stay > 1 night)

Species Targeted (% of trips)

Trout (any): 89% of tripsStocked Trout: 44%Smallmouth Bass : 33%Brown Trout: 22%

2015 Effort: An estimated 3,600 individuals took 19,800 fishing trips to Youghiogheny River

2015 Trip Expenditures: $162 mean; $35 median; Estimated Total 2015 = $3,200,000

Trip PurposeFishing was the primary purpose on 78% of trips

*Trip calculations (mean/median expenditures, duration,

purpose, species targeted) based on n = 9 sample.